Keithley Instruments 155 Overview
Null Detector-Microvoltmeter The 155 Null Detector-Microvoltmeter covers the measurement range 1 ?V to 1000 V. Battery powered. ?2% of full scale. Common Mode Rejection is equivalent to 140 dB. Input resistance 100 Mohms, 3-1 kV range. Manufacturer's Standard Accessories Instruction Manual
